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2,717
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texts texts 2,717
COLLECTION
TOPIC atoz
Geology 225
Mines and mineral resources 74
Petroleum 71
Oil wells 69
Geology, Stratigraphic 66
Gas wells 65
Agriculture 60
Coal 59
Coal mines and mining 44
Insect pests 43
Illinois State Geological Survey 40
Natural history 40
Groundwater 35
Architects 34
Architecture 34
Archives 34
Bees 34
Building 34
Insecticides 34
Lincoln, Abraham, 1809-1865 33
Dairy farming 32
Dairy farms 32
Illinois State Dairymen's Association 32
Insurance 32
Education 31
Water-supply 31
Mineral industries 29
Universities and colleges 29
Water quality 29
Bills, Legislative 27
Finance, Public 23
Illinois -- History Periodicals 23
Illinois State Historical Society 23
Independent Order of Odd Fellows. Grand Lodge of Illinois 23
Public welfare -- Illinois 23
Hazardous wastes 21
Land use 21
Oil fields 21
Natural gas 20
Oil field flooding 20
Environmental impact analysis 18
Pests 18
Secondary recovery of oil 18
Grants-in-aid 17
Hydrogeology 17
Intergovernmental fiscal relations 17
Iowa State University 17
Life insurance 17
Religious education 17
Statistics 17
College catalogs 16
Petroleum industry and trade 16
Water 16
Women 16
Field crops 15
Industrial Institute and College of Mississippi 15
Theses 15
Clay 14
Environmental protection 14
Women's colleges 14
Agricultural prices 13
Geology, Structural 13
Glacial epoch 13
Mine subsidences 13
Fisheries 12
Illinois -- Maps 12
Illinois -- Surveys 12
Illinois Humane Society 12
Land titles -- Registration and transfer Illinois 12
Surveying -- Illinois 12
Water resources development 12
Animal welfare -- Illinois 11
Dentistry 11
Greenhouse plants 11
Pollution 11
Dentists 10
Illinois Wesleyan University 10
Limestone 10
Memorial Day 10
Pollution prevention 10
Vegetable gardening 10
Day care centers 9
Dental laws and legislation 9
Ecology 9
Engineering geology 9
Fishes 9
Hazardous substances 9
Illinois -- History 9
Illinois Central Railroad Company 9
Illinois College 9
Illinois State Normal University 9
Illinois. Hazardous Waste Research and Information Center 9
Natural resources surveys 9
Soldiers 9
Superconducting Super Collider 9
ITALY 8
Illinois State University 8
Livestock 8
Man 8
Mineralogy 8
Railroads 8
STATISTICS 8
Sanitary landfills 8
Shore protection 8
Sociaal-economische situatie 8
Environmental monitoring 7
Geochemistry 7
Geological mapping 7
Geomagnetism 7
Illinois State University (Normal) 7
Iowa State Agricultural College Farm 7
Iowa State College 7
Paleobotany 7
Pesticides 7
Snow surveys 7
Surveying 7
Waste disposal in the ground 7
Water quality management 7
American newspapers 6
Baptists 6
Bible 6
Charter schools 6
Civil engineering 6
Coal trade 6
Conservation of natural resources 6
Debts, Public 6
Ecosystem management 6
Geological surveys 6
Hazardous waste sites 6
Illinois 6
Illinois -- Description and travel 6
Illinois Baptist State Convention 6
Illinois State Sunday School Convention 6
Illinois. Waste Management and Research Center 6
Indiana State Normal School 6
Legislation -- Illinois Periodicals 6
Local government 6
Microscopie 6
Microscopy 6
Paleontology 6
Petrology 6
Public welfare 6
Railroads -- Illinois 6
Sediments (Geology) 6
Source reduction (Waste management) 6
Subsidences (Earth movements) 6
Sunday school conventions 6
genealogy 6
Air 5
Beneficial insects 5
Borings 5
Catholic Church 5
Child care services 5
Church of England 5
Coke 5
College students 5
Darters (Fishes) 5
Educational law and legislation 5
Emblems 5
Employer-supported day care 5
Engineering 5
Fishing 5
Hydrology 5
Indiana. Dept. of Statistics and Geology 5
Indians of North America 5
Insects 5
Labor unions 5
Merchant mariners 5
Meteorology 5
Municipal engineering 5
Natural resources 5
Newspaper editors 5
Newspaper publishing 5
Petroleum engineering 5
Physicians 5
Political science 5
Sedimentation and deposition 5
Shale 5
Teachers colleges 5
Transportation 5
Wetland ecology 5
Air quality 4
Algorithms 4
Aquifers 4
Art 4
Beach erosion 4
Bengal (India) 4
Char 4
Charities -- Illinois 4
Civil rights 4
Coal mine waste 4
Coal washing 4
Coastal engineering 4
College teachers 4
Colleges and universities 4
Corn 4
Dolomite 4
Earth resistance 4
Employment agencies 4
Environmental responsibility 4
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